I live in a beach community. 98% of the people don't wear helmets and I don't see bodies littered all over the place. I'm a live-let-live kind of guy. If you want to wear a helmet, wear one. If you don't, don't.
What makes me angry is the people who do, reprimanding someone who doesn't. I've noticed it's mostly women. I've threatened a guy or 2 that if he doesn't shut up about me not wearing a helmet I'm going to run him off the road. People need to mind their own business.